Hydraulic Lift Box Trailer

This plan is for a tough, flexible and versatile dual axle box trailer in the size (8 x 5 ft.) 2400×1500. The Subframe is of strong RHS with plenty of support using 4 cross members. The body parts can be purchased at most trailer suppliers.

Included in this Trailer Plan
  • Drawings
  • Pictures
  • Part and cut lists
  • Construction tips
  • General advice
  • All in PDF file Format

This plan contains some DXF AutoCAD files



A large number of Hydraulic lift kits could be used on the setup.

Showing a swing up post that can be tilted up into a piece of Box Section on the Top Subframe for safe working under the Trailer.

Plenty of room in the 1200L x 400 H x 400 D Tool Box.

The Hydraulic Pump can be Mounted in the Drawbar tool box or up under the Front of the Trailer.

A view of the Tandem Suspension and Hydraulic Ram setup.

A simple set of Fabricated Hinges to Tilt the 2 Subframes.

A view with the Floor sheet removed to show the internal Subframes better.

The plans conform to the Australian National Code of Practice – Building Small Trailers (VSB1). Trailers built to comply with this code of practice can be registered for on-road use in Australia


    Tandem Dual Axle Hydraulic Lift Box Trailer
  • Size – 8 x 5 ft. (2400 x 1500 mm)
  • Gross Vehicle Mass (GVM) – (Single Braked Axle 2000kg)
  • (Dual Electric Braked Axles with Brake Away System 3400kg)
  • Weight of Trailer Only (Tare) approximately 500kg
  • Chassis Construction – RHS
  • Hydraulic 6 Stage Cylinder with A 12 Volt Power Pack
  • Safety Post for Top Chassis for Maintenance Purposes
  • Tandem Roller Rocker Suspension
  • Drop Down and Lift Up Tail Gate
  • Swing up Jockey Wheel
  • Spare Wheel Mount